How climate change triggered a landslide tsunami in a Greenland fjord, vibrating Earth for 9 days

[@civilbeard]

Nicely done! Thanks Tom Scott for sending me here!

[@room5245]

Was linked to this by the Dutch NOS news, fascinating piece! Astonishing science

[@tesla6422]

*chuckles* I'm in danger

[@Natogoon]

Based NOS 🇳🇱😎💪🏻

[@aroasampedro2692]

Me too!

[@robertlove8064]

Same here from Iceland, fascinating stuff

[@pieternelrodermond-vanreen3225]

Also here via NOS🇳🇱

[@relwaretep]

This is the sort of science video that shows KZbin at its best. Thanks very much!

[@stephenhicks9108]

Thanks so much - this is great to hear - and all my efforts in making the video have paid off :)

[@kiereluurs1243]

Congratulations, your views went up from 100 to 100.000. 😀 Thanks to major media linking to this.

[@stephenhicks9108]

Thanks for your comment and interest.

[@bieknijst2449]

Calling it a USO, and they say seismologists have no sense of humor!

[@peraltarockets]

Great work. And thank you for illustrating the scale of the walls of that fjord! Absolutely mind boggling size.

[@jonathanloh1205]

Amazed that you were able to figure it all out! Extraordinary story. Thanks for the excellent video

[@IstasPumaNevada]

That is rather fascinating. Thank you very much for sharing, and congratulations to all on the release of the paper.

[@JeffBilkins]

Solid explanation and I enjoyed watching the presentation from the source group. Usually this news comes from science channels that browse papers but today this was linked from Dutch general news about the discovery, so that's cool.

[@michellemilne4359]

Was linked to his by the Canadian CBC news. Thank you so much for all the work you and your 68 colleagues did to figure this. Thank you for sharing it with all of us.

[@e.k.4508]

Voor Nederlandstalige kijkers: een "seiche" is is de internationale term voor een "haling". Dat is een oscillerende golf: een golf die heen en weer klotst in een (gedeeltelijk) ingesloten watermassa. Zoals in een fjord, meer etc.

[@P2krwl]

Super clear, well explained and helpful animations! Thanks!

[@kaleidoughscope]

What a provocative start for a title!

[@MarijnRoorda]

The Unsung hero's of climate change. You can blame the NOS for making me watch this. And i now have a much deeper understanding of seismology. Thanks for that!

[@NGCAnderopolis]

Hey, thanks for doing this, science communication is so valuable!

[@ilformaggiodidio]

Great video and explanation on the event. Never crossed my mind that glaciers also hold back a lot of the land mass as well as the glacier itself. Very interesting.

[@nyali2]

Or maybe glaciers and Ice ages to blame for the canyons in the first place? Mind you the landslide happened a few hundred meters above the glacier. It was hardly held by the ice.

[@Rebuildm3417]

Amazing explanation - very clear laymen language. Thank you

[@michaelhughes7668]

Great analysis, keep up the good work! 👍🏻

[@tubulzr]

Great video explanation. Much obliged.

[@Frank01985]

There's a Norwegian disaster movie called Bølgen (The Wave), which is about this kind of tsunami happening in a fjord in Norway. It's pretty good!

[@Pecisk]

It is one of scariest disaster movies according to some critics. I kinda don't want to challenge myself ot see it. I think it was made after similar events in Alaska if I am not mistaken?

[@Frank01985]

@@Pecisk Wouldn't say it's all that scary in terms of the movie itself. The fact that it's based on a real scenario makes it a lot better than most disaster movies, but it still falls into many of the same tropes. And its premise starts with looking back on a similar event that actually happened in Norway in the early 1900s if I remember correctly.

[@kiereluurs1243]

No, its a ridiculous movie.

[@CorrinaJanssen]

Great and very interesting! Thank you!

[@andrehorvath7441]

Mother Earth talks to us with a subwoofer. "Thank you for listening."....

[@nnonotnow]

I've seen reports on this but what you've done is really amazing. I appreciate your work. What a fascinating event

[@danielchowdhury6073]

Great explanation. Accessible and interesting!

[@stephenhicks9108]

thanks so much for your nice feedback - made the effort worthwhile :)

[@DEEPAKRAWAT-es3tg]

Excellent work! Utilizing seismology to characterize subsurface events is a game-changer. I've personally explored its application in investigating ice-rock avalanches through seismic signals, and the potential is vast. This field holds immense promise for unraveling mysteries of remote locations, as well as the Earth's and other planets' subsurface and surface dynamics. Your research underscores the significance of seismology in advancing our understanding of complex geological processes. Looking forward to more groundbreaking discoveries.

[@maxximumb]

Very interesting video. Thanks for making it and sharing with us.

[@mattatthapon1461]

In Thai Newspaper written about this today Sep13,2024 but I'm not understand until I watched this video , thanks for the information.

[@Eliza7887]

Agree. These people understand this stuff so good that they really can explain it to us.

Merci beaucoup de vulgariser vos travaux.

[@teresavera3216]

Thanks very informative

[@rhythmace1]

Fascinating story and video!

[@robindabank6711]

Thank you for making this

[@stephenhicks9108]

Thanks so much for your nice comment and interest.

[@robduivis5103]

Very interesting study and once again a reminder of the significance of science and the human impact on our environment.

[@stephenhicks9108]

Many thanks for your nice comment and your interest - much appreciated.

[@HistoriShqip]

Tom Scott brought me here. Thnx Tom!

[@delturion]

Great video!

[@Hambone4life]

this is so cool. wish there was video of it but still really cool

[@EMSCCSEM-earthquakes]

Love it!

[@e.k.4508]

Great video, I second every positive commend! One recommendation: don't add music, it's a bit distracting and not necessary. The video is interesting enough in itself.

[@slueccroll4661]

whaow! such an effect of such an event, real scary actually!

[@thomasheye7264]

Awesome explanation on this event! Would love to see a 3D-animation of the landslide and 200m(!!) high wave. I'd like to learn more on how quick the big wave disappeared and how the wave kept moving under water. The navy was there 3 days after? Didn't they notice anything on their ships of that movement of the water? Very interesting stuff this!

[@pjkoelemeijer]

The quick wave disappeared pretty quickly and settled into a low amplitude wave sloshing back and forth in the fjord. When the navy went, it would have been

[@klaasscholte7896]

Very interesting

[@milliosmiles5160]

Excellent presentation.

[@stephenhicks9108]

Many thanks for your nice comment and your interest - much appreciated.

[@yan.weather]

Fascinating

[@god0]

I found the link in Mastodon. Thanks for the great work analyzing what happened and for the excellent video.

[@stephenhicks9108]

Many thanks for your nice comment.

[@leonag5839]

Thank you😊 Amazing to see and hear. Will there be any next steps or actions taken from your findings?

[@fvmuijen]

Amazing report! And a shocking realization about climate change...😔

[@stephenhicks9108]

Many thanks for your nice comment and your interest - much appreciated.

[@patrick247two]

Amazing. Subbed. Tell me more.

[@NicolasReid___1___]

Could any other later seismic events (earthquakes) be related (caused) by this event? I would be surprised if this wasn't the case.

[@astrophotonl]

Very interesting. Are the additional files also somewhere available?

[@stephenhicks9108]

@@astrophotonl hello, which additional files do you mean exactly?

[@astrophotonl]

@@stephenhicks9108 the supplementary texts that are mentioned. S1 to S6.

[@astrophotonl]

I did research in geophysics in the past and now I'm a physics teacher. I showed this to my exam classes to show the relation between physics, and what they learn, and the real life. It's a great example!

[@stephenhicks9108]

You can find our supplementary materials here: www.science.org/action/downloadSupplement?doi=10.1126%2Fscience.adm9247&file=science.adm9247_sm.pdf (let me know though if you have any problems getting this).

[@aerodaan]

This shows testament to the accuracy and sensitivity of the monitoring of our planet and the intelligence of the scientists that analyse these data.

[@stephenhicks9108]

Thanks so much for your comment and keen interest in our study.

[@huubderksen8466]

at 3.03 the Danish geologist talks about 'west of the landslide', mustn't that be, because the Dickson Fjord is shown at a more widest point, 'east of the landslide' ?

[@stephenhicks9108]

Yes, you're right that it was a mistake, but I corrected the subtitle/CCs :)

[@assepa]

Does anyone know what exactly is meant by the "destroyed cultural and archaeological heritage sites across the fjord system" mentioned in the GEUS article?

[@stephenhicks9108]

Good question, Thule Culture Inuit archaeological sites and 20th-century trapper huts were destroyed by the tsunami which meant that no such event had occurred in at least 200 years.

[@pixelpusher220]

An interesting question given the novel nature of this signal. What effect does a *continuous* mulit-day hum of crust vibrations have on fault zones? and kudos to the calling the 200m runup a 'splash' and not just a tsunami. Very different wave types.

[@NicolasReid___1___]

That was exactly my question, which remains unanswered. I would be surprised if it had no correlation at all with other seismic events during that time.

[@stephenhicks9108]

Many thanks for your question. Once the seismic waves leave Greenland, the ground vibrations are very minor (< micrometers displacement) and are so long in oscillation period that they are unlikely to dynamically affect any stress changes along faults. We didn't observe any increase in global seismic activity after this event.

[@petergibson2318]

Fault zones are continuously being stressed by the sun and the moon. There are "tides" on land as well as in the sea!

[@KitagumaIgen]

Great explanation! To me it is very interesting that the wave remained in the fjord for so long - I would've expected a much faster "leakage" of the wave out of the fjord, but this is pretty far from my field of knowledge...

[@jerseycatmews828]

So interesting. But that piano music background was unnecessary and distracting

[@zoranlevnajic2089]

But how can sloshing water generate a seismic signal? Afterall, it's just water..? What am I missing?

[@NicolasReid___1___]

'Just water'? I dare you to slap a surface of water with your hand as HARD as possible, without saying ouch!

[@zoranlevnajic2089]

Have you ever heard of a seismic signal being generated by a wave? Seiche in a fjord, even if 7m high, is still a wave (made of sea water). Actually, the world has seen much bigger waves hitting shores due to hurricanes, etc.

[@logitech4873]

Read the paper

[@stephenhicks9108]

Many thanks for your comment. So the water's centre of gravity keeps moving back and forth, essentially crashing against the fjord walls, which transfers momentum, generating seismic energy through the Earth's crust. We also see seismic signals (as a form of noise) due to approaching hurricanes and storms.

[@zoranlevnajic2089]

@@stephenhicks9108 This for this clarification, which is very useful. So, seiche is really not a 'wave' in the usual sense, but the entire water in the fjord actually moves back and forth. Due to friction with the fjord walls, some momentum gets transferred with each bounce, which manifests itself as a detectable sesmic signal. Did I get it?

[@TalCMusic]

I need to see a visual representation of this

[@grndkntrl]

Is this video not sufficient‽

[@dannystilleo363]

Titans are waking up

[@YB31234]

I bet an intern or two had a great laugh when coming up with the term Unidentified Seismic Object.

[@stephenhicks9108]

Actually, the term came from one of our most senior and experienced coauthors :)

[@betornween]

It can't be an "object" if it's unidentified.

[@peterjones4180]

Really, ok, please explain exactly how has climate changed when current climate is TOTALLY within normal variation for our current interglacial, the Holocene spanning the last 8000 years.

[@haven216]

So far, you mean? The problem is the rate of warming.

[@peterjones4180]

@@haven216 Nope not at all, the warming trend lines are the same as the previous multi decade warmings we have had since we came out of the little Ice Age. Nothing unusual happening there.

[@peterjones4180]

@@haven216 Furthermore, look at the trend line in the Reference System, THE most accurate land temperature monitoring system in the U.S since it was set up in 2005. So far that system shows NO overall warming trend since 2005.

[@haven216]

@@peterjones4180 The planet was on a cooling trend since the holocene climatic optimum. While there were smaller increases and decreases during that time, the general trend was down right up until the industrial revolution, especially when a smoothing filter is applied. Since then, temperatures have been increasing at an increasing pace. That is an irrefutable fact. There have now been countless independent studies that confirm this trend.

[@haven216]

@@peterjones4180 Your claim is also directly contradicted by the data gathered by USCRN itself. Since it was setup in 2005, it has been consistent with records from the national weather station network. If anything, it shows slightly more warming than the old network, about +0.5C every decade. It is also a well established fact that some places warm faster than others, especially at the poles.

[@stevek9793]

Greenland Ice cap has only decreased by 1% in the last 30 years.

[@patrickroragen1059]

Are you complaining about the lack of progress

[@andrewoates8723]

Fascinating example! Great science and team effort! However, your claim about climate change being the "cause" was a bit wild. I agree that anthropogenic warming has enabled this event but drawing such a direct line is too much for me. I know it gets views / funding saying these things but it compromises the science.

[@vastirvision]

You believe there is *not* a direct correlation between this event and climate change? Are we even able at this point to definitively distinguish between such events, those that are and those that are not caused by anthropegenic warming? I understand there are numerous factors at play, I assume they all fall under the umbrella of climate change. Did they not establish some time ago that the deglaciation occurring in places such as the Lewis Range was attributed to a combination of both natural and non-natural causes, however, that the markedly accelerated pace of this deglaciation was in fact due to anthropogenic warming? These are sincere queries, and I greatly appreciate your reply and/or any references that could be provided to enlighten one in the matter.

[@jukee67]

Climate change caused that piece to break away and splash down into the water beneath it? In order a rumble to travel around the globe with a hum that went on for days, is it ridiculous to disagree? Something flew by made contact with our planet in order to have such an impact. As a explanation, the climate change theory is convenient as an answer to prevent anyone from critically thinking about the size/impact that came along with this event. Maybe a volcanic release somewhere, activity from the sun, or whatever can be used from the past to compare this with. Something is not adding up. Like the anomalies occuring in the southern ocean of the coast of South Africa. Climate change is a broad statement. When used as the cause of such an event it lacks any details one would expect after a global shock felt around the world.

[@betornween]

Or dismissing gravity and centuries, eons even of erosion from the event. Why did they just happen to set up seismic detection equipment (3:34) in this particular fjord before this happened? Coincidence? Something to make you go... Hmm? Myself, I don't believe in coincidences but I do believe in conspiracies to make them happen. If you can question it, it is science. If you can't, it is propaganda. ~Luke Rudkoski~

[@KitagumaIgen]

When there is a pair of before and after images showing the missing mountain-side, your instant suspicion is that it would have been "something flew by made contact with our planet"? My suspicion is that the missing mountain-side fell into the fjord. Reduced permafrost might well have been the cause. Anyone living in areas where the ground freezes is well aware of this type of landslide in spring - on much smaller scales - when the ground thaws.

[@A3Kr0n]

Donald Trump says this is all a hoax and he has the biggest button. Weeeeeeeee! We're all gonna die!

[@TamaraTorres-v7s]

The volcanoes

[@carolynstine3465]

This tsunami wasn’t the result of an earthquake? The waves felt around the world were actually the tsunami?

[@NicolasReid___1___]

You didn't watch the movie.

[@OneWithTheOcean]

A tsunami is a big water wave, the big water wave was in the fjord. The waves around the world were vibrations in bedrock/sediment.

[@e.k.4508]

The tsunami was the result of the landslide from above the glacier. The glacier was thinned bc of the warmer climate. Couldn't sustain the weight of the land above it anymore . So a landslide occurred. The video explains it pretty well!

[@carolynstine3465]

@@OneWithTheOcean Wow! I thought I might have missed something.

[@robindabank6711]

What I understood was, Vibrations felt around the world was of Seiche created in Dickson Fjord

[@betornween]

What? Wait! What about eons worth of Earth's gravitational force, erosion and normal freeze and thaw cycles over those same eons of time before man became a thing? All the glacier did was get in the way from the rocks inevitable fall. Love all the our way or no way Science Inc. logos at the end. Nice images by the way.

[@UserName-One]

Why was this idiotic music added? Just let the speak stand by itself!

[@williamfowler616]

the climate has been changing ever since it was a thing, it will always change, tomorrow a volcano could pop and a mini ice age could begin and then you would be wanting the current weather back again.

[@Jc-ms5vv]

Just never at this rate

[@williamfowler616]

@@Jc-ms5vv how do you know it never changed this slowly?

[@Jc-ms5vv]

@@williamfowler616 rapid changes in the climate is what caused mass extinctions not slow ones where species had time to adapt

[@williamfowler616]

@@Jc-ms5vv so fast is what has happened in the past, what is the problem with the climate changing? earth defrosting and warming up is in the future and man cannot stop it from happening

[@Jc-ms5vv]

@@williamfowler616 its rapidly changing now

[@douglasengle2704]

This video has the United Nations Climate Change disclaimer. Global warming was officially stated at 1.1°C in 1991 and 1.06°C in 2022. Global warming has been staled at about 1°C since 1992. The cause of global warming is not know 2024. In the early 1980s it was predicted if global warming was to rise to 1.5°C observable stronger hurricanes should take place in the Gulf of Mexico. Which was given the promotable term of Climate Change. That has not happened as of 2024. The Arctic region is getting warmer. It is scientifically impossible for greenhouse gas behavior to cause global warming. All the greenhouse radiant energy from the earth is completely absorbed in earth's greenhouse effect by greenhouse gases within 20 meters of the radiating surface that is always in saturation from the strong greenhouse gas water vapor. The back of the United Nation's Intergovernmental Panel on Climate Change (IPCC) science report states it took its greenhouse gas samples at 20,000 meters altitude where it is common high school level knowledge there is no greenhouse radiant energy. This is typical practice for deceptive marketing to state legal data transparency protecting the perpetrators from fraud prosecution. The IPCC has been transparent with its data acknowledging it is not dealing with active greenhouse gases. Earth's greenhouse effect is frequently used as a primary example to high school students of a system always in saturation from the strong greenhouse gas water vapor absorbing all the greenhouse radiant energy from the earth with greenhouse gases within 20 meters of the radiating surface that is all around us everyday and can't have its overall effect changed. There is no further greenhouse radiant energy to interact with greenhouse gases. At 1% average tropospheric water vapor over 99% of earth’s greenhouse effect is from water vapor. Water vapor would hold earth's greenhouse effect in saturation if it were the only greenhouse gas in the atmosphere. The overall average temperature gain to the earth from the earth’s greenhouse effect is 5.55°C (10°F). Arctic warming is taking place with the proving mechanism being warm Atlantic Ocean waters migrating deeper and more frequently into the Arctic Ocean warming it and the region. That warmer water is causing a few weeks less of reflective snow and ice coverage resulting in more solar heat gain to the Arctic region surface. Atmospheric CO2 levels of 1200 ppm about three times what they are today would greatly invigorate C3 plants the majority of plant life on earth greatly greening the planet. 0.4% of the atmosphere is CO2 and on average 1% is H20 water vapor. (1% H20)/(0.4% CO2) = 25. Water vapor is 25 times more present in the atmosphere on average than CO2. Water vapor has an CO2e of 18, 18 X 25 = 450 CO2e total for water vapor to 1 CO2e for CO2. The Earth’s oceans have 3-1/2 million sea floor volcanic vents warming the water and changing it’s chemistry that have not been systematically accounted for.

[@artysanmobile]

An excellent lesson here in both how and why data cherry-picking is used to deny a conclusion one doesn’t want to acknowledge. All the classic techniques are on display here. 1. Blinding them with math enumerating your counter-fact is highly effective despite failing to account for global observations you don’t like. 2. Presenting alternative causes with absolutely no data whatsoever to distract from the ones with data. 3. Comparing two wholly different mechanisms with no accounting at all for how their effect inherently differs. Fascinating post.

[@lindasandel7304]

How about the fact one volcanic eruption can cause more air-pollution and climate change than man. But then they can't ban the volcano, or tax it.

[@Jc-ms5vv]

😂😂😂😂

[@dougs3196]

HAARP

[@anya-forger923]

Bless you!

[@kiereluurs1243]

HAARP

[@manythanks5143]

Pics or it didn't happened

[@Eliza7887]

Lots of pictures of before and after in the vid. Look at what happened on Ella island (70 km from the source of the wave). And all the vegetation gone.

[@kiereluurs1243]

Watch the video, or you have no clue.

[@AlienSpaceAngel]

The climate is always changeing,, always have been,always will do,, ! ITS NOTHING NEW the earth is alive !!!!

[@kiereluurs1243]

🥱🙄 Moronic.

[@logitech4873]

Grow up

[@Jc-ms5vv]

Just never at this rate

[@moto126ktm]

Climate change hahaha

[@Jc-ms5vv]

Hopefully you can connect the dots when there’s no food on the shelves

[@moto126ktm]

@Jc-ms5vv well it won't be because of climate change

[@Jc-ms5vv]

@@moto126ktm oh but it will. Already starting to happen

[@moto126ktm]

@@Jc-ms5vv So what are the dots connecting? What is you take on Climate Change?